1990440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:136

約数の個数: 128

約数和(自身を含む): 7056000

約数和(自身を除く): 5065560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 97, 108, 114, 120, 135, 152, 171, 180, 190, 194, 216, 228, 270, 285, 291, 342, 360, 380, 388, 456, 485, 513, 540, 570, 582, 684, 760, 776, 855, 873, 970, 1026, 1080, 1140, 1164, 1368, 1455, 1710, 1746, 1843, 1940, 2052, 2280, 2328, 2565, 2619, 2910, 3420, 3492, 3686, 3880, 4104, 4365, 5130, 5238, 5529, 5820, 6840, 6984, 7372, 8730, 9215, 10260, 10476, 11058, 11640, 13095, 14744, 16587, 17460, 18430, 20520, 20952, 22116, 26190, 27645, 33174, 34920, 36860, 44232, 49761, 52380, 55290, 66348, 73720, 82935, 99522, 104760, 110580, 132696, 165870, 199044, 221160, 248805, 331740, 398088, 497610, 663480, 995220, 1990440]

約数ペア:

[(1, 1990440), (2, 995220), (3, 663480), (4, 497610), (5, 398088), (6, 331740), (8, 248805), (9, 221160), (10, 199044), (12, 165870), (15, 132696), (18, 110580), (19, 104760), (20, 99522), (24, 82935), (27, 73720), (30, 66348), (36, 55290), (38, 52380), (40, 49761), (45, 44232), (54, 36860), (57, 34920), (60, 33174), (72, 27645), (76, 26190), (90, 22116), (95, 20952), (97, 20520), (108, 18430), (114, 17460), (120, 16587), (135, 14744), (152, 13095), (171, 11640), (180, 11058), (190, 10476), (194, 10260), (216, 9215), (228, 8730), (270, 7372), (285, 6984), (291, 6840), (342, 5820), (360, 5529), (380, 5238), (388, 5130), (456, 4365), (485, 4104), (513, 3880), (540, 3686), (570, 3492), (582, 3420), (684, 2910), (760, 2619), (776, 2565), (855, 2328), (873, 2280), (970, 2052), (1026, 1940), (1080, 1843), (1140, 1746), (1164, 1710), (1368, 1455)]